Owner's manual

Chapter 4 ______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 25
CHAPTER 4
MAINTENANCE
This chapter provides information that is needed in basic maintenance of
the product.
Replacing the HUMICAP
®
Sensor
Fixed Probe Model
1. The end of the plastic probe cover is detachable. Carefully turn the
end about 1/6 of a turn to loosen it. Remove the end of the probe
cover and the filter.
2. Remove the damaged sensor and insert a new one.
3. Recalibrate the transmitter.
4. Replace a dirty filter to ensure a maximum lifetime and a fast
response for the sensor. Do not attempt to clean the filter.
Remote Probe Model
1. Remove the filter (plastic grid or sintered stainless steel).
2. Remove the damaged sensor and insert a new one.
3. Recalibrate the transmitter.
4. Replace a dirty filter to ensure a maximum lifetime and a fast
response for the sensor. Do not attempt to clean the filter.